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Wild about Yellow Lupine

May 10, 2010

Great weekend outing at Fort Funston. Max our border collie gets to play, and we get to check out the wildflowers.  We were excited to come across this Yellow Bush Lupine (Lupinus arboreus). We often see blue Lupine at Fort Funston, but this yellow one was bonus.

Lupinus arboreus - Yellow Bush Lupine

Lupinus arboreus - Yellow Bush Lupine

Here is an overview of this California native shrub.  This particular plant was about 4 feet tall and 5 feet wide.  The blooms were just starting.

Lupine on the dunes.

Lupine on the dunes.

The Yellow Bush Lupine grows happily in sandy soil and under coastal conditions.  Flowers tend to bloom from March to September.

Yello Bush Lupine - Lupinus arboreus

Yellow Bush Lupine - Lupinus arboreus

What I did not know about these wild Bush Lupines that they establish deep roots which help stabilize the sand dunes here.  Sweet find!

– Far Out Flora

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5 Comments leave one →
  1. reubix1 permalink
    May 10, 2010 9:36 pm

    I’ve never seen lupine in yellow, great photos!

  2. mike permalink
    March 30, 2011 10:27 am

    What makes it a “BAD” plant?

    Yellow bush lupine is a tall, dense shrub that shades out native dunemat species.
    By fixing nitrogen and casting shade, it modifies the beach environment, encouraging other non-native species to colonize below its limbs.
    It displaces three (CNPS List 1B) sensitive plant species: beach layia (Layia carnosa) [also federally listed as endangered], Wolf’s evening primrose (Oenothera wolfii) and pink sand verbena (Abronia umbellata ssp. brevifolia).
    It hybridizes with native species of lupine, disrupting native gene pools. Most of the lupines near the Redwood Information Center are hybrids between yellow bush lupine (Lupinus arboreus) and a native, blue-flowered lupine (Lupinus rivularis).

    How do you get rid of it?

    Hand pulling and weed wrenching are the best methods of removal.
    The entire root system must be removed for the plant to die.
    Plants can be left where pulled, but large quantities are removed and burned to preserve the aesthetic quality of the beach.

    • March 30, 2011 8:49 pm

      Yeah, we didn’t realize what a thug it was up here until recently. Who knew?!?!?

Trackbacks

  1. Wild Beach Lupine « Far Out Flora's Blog
  2. Lasting Lupinus Arboreus « Far Out Flora's Blog

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